Scientific Reports
·
2021
·Vol. 11
·期 1
·1-19
·
IF 4.38
Gul Taza,Kashifullah,Bilal M.,Alghamdi Wajdi,Asjad M. Imran,Abdeljawad Thabet
The thermal management of the flow of the hybrid nanofluid within the conical gap between a cone and a disk is analyzed. Four different cases of flow are examined, including (1) stationary cone rotating disk (2) rotating cone stationary disk (3) rotating cone and disk in the same direction and (4) rotating cone and disk in the opposite directions. The magnetic field of strength \(B_{0}\) is added to the modeled problem that is applied along the z-direction. This work actually explores the role of the heat transfer, which performs in a plate-cone viscometer. A special type of hybrid nanoliquid containing copper Cu and magnetic ferrite Fe 3 O 4 nanoparticles are considered. The similarity transformations have been used to alter the modeled from partial differential equations (PDEs) to the ordinary differential equations (ODEs). The modeled problem is analytically treated with the Homotopy analysis method HAM and the numerical ND-solve method has been used for the comparison. The numerical outputs for the temperature gradient are tabulated against physical pertinent variables. In particular, it is concluded that increment in volume fraction of both nanoparticles \(\left( {\phi_{{Fe_{3} O_{4} }} ,\phi_{Cu} } \right)\) effectively enhanced the thermal transmission rate and velocity of base fluid. The desired cooling of disk-cone instruments can be gained for a rotating disk with a fixed cone, while the surface temperature remains constant.
研究领域:
流体力学
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纳米流体传热
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应用数学
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磁流体动力学
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热能工程
✓ 已验证
DOI
高影响因子
INORGANIC CHEMISTRY
·
2022
·
IF 5.436
Jingjing Zhang,Xiaomin Zhang,Ying Wang,Kui Wu,Bingbing Zhang
Ultraviolet (UV) nonlinear optical (NLO) materials have crucial practical applications in modern laser science and technology. Phosphates are promising candidates for searching UV NLO materials. However, small optical anisotropy of high-symmetrized (PO4)3– tetrahedron hinders phase matching (PM) in the UV wavelength range. Herein, a low-symmetrized phosphite anionic group (HPO3)2– is proposed as a new NLO-active group that exhibits a larger optical anisotropy and second-harmonic generation (SHG) coefficients than (PO4)3–. Accordingly, two phosphites, (C(NH2)3)2Zn(HPO3)2 and [Al2(HPO3)3(H2O)3]·H2O, that contain (HPO3)2– groups are screened out and synthesized. The UV absorption edges of the two compounds are 6.18 and 6.23 eV, respectively. (C(NH2)3)2Zn(HPO3)2 exhibited an SHG intensity of 1 times that of KDP at 1064 nm. This work proposes a new NLO-active fundamental building unit (FBU) and a new materials system for searching NLO materials.
研究领域:
材料科学
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光学
·
无机化学
·
激光技术
✓ 已验证
DOI
高影响因子
Inorganic Chemistry Frontiers
·
2023
·Vol. 10
·期 21
·6253-6261
·
IF 7
Hongshan Wang,Xueting Pan,Wang Zhao,Yu Chu,Junjie Li
Developing high-performance infrared (IR) nonlinear optical (NLO) materials is essential for modern laser technology, but challenging due to the competition of the NLO coefficient and band gap in the structure. Based on the “electronic structure engineering bucket effect” and systematic experimental investigations on the AIIBIICIVD4VI family, three new alkaline earth metal sulfides Mg0.6Cd1.4GeS4, CaCdGeS4, and BaZnGeS4 have been developed. The compounds show a structural change from the Pnma (CaCdGeS4) to the Fdd2 (BaZnGeS4) space group. Among them, BaZnGeS4 exhibits a phase-matching NLO response of ∼0.8× AGS, a wide band gap of 3.36 eV, and a high laser-induced damage threshold of ∼5.4× AGS, achieving a good balance between the NLO response and band gap, which makes it an excellent IR NLO material. Theoretical calculations show that the NLO effects of BaZnGeS4 originated from the [ZnS4] and [GeS4] NLO-active motifs. The results indicate that BaZnGeS4 is a promising anti-laser damage IR NLO material and enriches the chemical diversity of the AIIBIICIVD4VI family.
研究领域:
材料科学
·
光学工程
·
固体物理
✓ 已验证
DOI
高影响因子
IEEE SENSORS JOURNAL
·
2026
·
IF 4.5
Luheng Wang,Zhen Gui
The advancement of flexible sensing technology has created a strong demand for reliable operation on curved surfaces, but characterizing and predicting sensor performance under bending remains a fundamental challenge. This study systematically investigates the influence of bending deformation on the impedance response of a flexible eddyingized sensor made from a carbon nanotube/silicone rubber composite. The research reveals that curvature significantly modulates the electromagnetic-structure interplay, altering both the magnetic coupling and the internal conductive network response across non-contact, loading, and relaxation stages. A larger radius of curvature enhances impedance magnitude variation but reduces impedance angle change, while also decreasing the critical impedance and DC resistance. By integrating these curvature-dependent features with an interpolation algorithm, a sensing methodology is established to decouple gap and pressure under arbitrary curvature conditions accurately. This work provides both mechanistic insight and a practical framework for curvature-adaptive flexible sensing, laying the foundation for high-performance soft robotics and bio-integrated devices operating on curved surfaces.
✓ 已验证
DOI
高影响因子
Biomaterials Science
·
2026
·
IF 6.1
Can Huang,Zhihui Li,Shuang Wu,Peiliang Shi,Zhengzhong Wu,Jie Li,Xiaoju Fan,Yuanxin Zhai,Hao Le,Huimin Wang,Xinhui Wang,Huilin Sun,Ziqing Zhu,Jinyu Lv,Longyang Wu,Yujiang Fan,Jianping Gao,Yun Chu,Tun Yuan
Current research methodologies still exhibit certain limitations in elucidating the in vivo behavior of biodegradable protein-based biomaterials, particularly crosslinked recombinant collagen materials. Although traditional isotope and fluorophore labeling techniques allow for highly sensitive visual tracking, the information obtained primarily reflects the migration and distribution of the labeled molecules, making it difficult to accurately reveal the composition and transformation characteristics of degradation products. To address this issue, the present study proposes a comprehensive analytical strategy. Specifically, degradation products are characterized and analyzed through an in vitro simulated degradation system, and these findings are further validated and complemented by in vivo investigations, including histological observations, immunological assessments, and multi-level toxicological studies. Building upon existing visualization and tracing methods, this integrated approach enhances the understanding of the degradation process and provides a potential framework for evaluating the in vivo behavior of biodegradable protein-based materials. Consistent results across multiple experimental approaches demonstrate that fluorescence labeling and isotope tracing effectively capture the early-stage degradation dynamics. Meanwhile, the combined analysis of in vitro degradation products, histological examinations, and toxicological evaluations further elucidates the mid- to late-stage degradation processes and product transformations, thereby offering a more comprehensive understanding of the materials’ in vivo behavior. Furthermore, the study explores the conceptual relationship between degradation and metabolism from a biological perspective, suggesting that, for recombinant collagen-based materials, the degradation process may hold more direct significance in elucidating their biological fate within the body.
✓ 已验证
DOI
PubMed
高影响因子
JOURNAL OF MOLECULAR STRUCTURE
·
2025
·
IF 4.7
Chunxiang Wu,Yuze Li,Zhengli Liang,Xiao Jiang,Hui Fang,Lixiang Qin,Xingyuan Bai,Lehui Liu,Xingxing Jiang,Zheshuai Lin,Hongming Liu
Second harmonic generation (SHG) response, birefringence, and optical band gap are several critical parameters of nonlinear optical (NLO) crystals. However, due to the mutual influence and constraints among the fundamental properties of NLO crystals, simultaneously optimizing these performance parameters poses a significant challenge. Herein, lanthanide iodates crystallizing in centrosymmetric (CS) space group were selected as parents, by introducing [SO 4 ] group and water molecule to induce symmetry breaking, a series of mixed-anion lanthanide iodate-sulfate hydrates, RE(IO 3 )(SO 4 )(H 2 O) 2 ∙H 2 O (RE = Eu, Gd, Tb, Yb, Y), were obtained. Their structures changed from the CS space group of the parents to non-centrosymmetric (NCS) one ( P 2 1 2 1 2 1 ). These crystals exhibit strong SHG responses (0.79−1.21 × KH 2 PO 4 ), moderate birefringence (0.061−0.109), short UV transmission cutoff edges (∼240 nm), and wide optical bandgaps (4.24−4.32 eV), demonstrating their potential as NLO crystalline materials with excellent comprehensive properties. This work highlights a feasible strategy of introducing [SO 4 ] group and water molecule into CS iodates to construct NCS structures, thereby developing potential high-performance NLO crystal materials.
✓ 已验证
产品关联
DOI
高影响因子
Inorganic Chemistry Frontiers
·
2025
·
IF 6.4
Ting-Ting Shen,Jing Liu,Fang-Yuan Bai,Wei-Wei Xu,Xue Yong,Zhi-Rong Li,Jing-Ru Han,Jun Chen,Heng Zhao,Zhi-Yi Hu,Yu Li,Bao-Lian Su
Biomass photoreforming to coproduce sustainable hydrogen and valuable chemicals is a potential strategy for alleviating energy and environmental issues. However, the lack of bifunctional catalysts to efficiently achieve the “one stone kills two birds” scenario greatly limits its practical application. Herein, we rationally design a three-dimensionally ordered macro-porous structure (3DOM) CaTiO3 (CTO) to address the mass diffusion and light harvesting and to load ZnxCd1-xS (ZxC1-xS) quantum dots (QDs) realizing the selective glucose photoreforming process. The regulatable band gap of ZxC1-xS endows 3DOM CTO-ZxC1-xS composites with sufficient light absorbance and adjustable redox potentials. As a result, the optimized 3DOM CTO-Z0.5C0.5S delivers the best performance for sustainable hydrogen evolution from glucose photoreforming with the rate of 4.05 mmol g-1 h-1 and the apparent quantum efficiency (AQY) of 6.48% under monochromatic light of 365 nm. In particular, the well-developed photocatalysts simultaneously produce gluconic acid with the selectivity up to 83.8% from the targeted oxidation of terminal aldehyde group of glucose. The DFT calculations on Gibbs free energy change of HER and the energy difference between reactants and products of OER further reveal that the constructed Z-scheme heterojunction contributes to the spatial separation of photogenerated electrons and holes for a good quantum efficiency and liquid product selectivity. This work demonstrates a sustainable technology for the coproduction of hydrogen and value-added chemicals from photocatalytic biomass valorization.
研究领域:
材料科学
·
环境科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
THERMOCHIMICA ACTA
·
2025
·
IF 3.5
Run Li,Minglong Zhang,Hongwei Li,Bo Ni,Baozhong Zhu,Shuangyan Wu,Yunlan Sun
Boron (B) powder is a promising fuel for propellants due to its high gravimetric and volumetric energy densities. However, its surface oxide layer (B 2 O 3 ), with a low melting point and high boiling point, tends to form a protective coating during combustion, leading to particle agglomeration and reduced combustion efficiency. To address this, the tetrafluoroethylene hexafluoropropylene vinylidene@glycidyl azide polymer@B (THV@GAP@B) composite was prepared via a recrystallization method. Various characterization methods were employed to study the effects of THV and GAP on the ignition and combustion to reduce B agglomeration and improve its combustion efficiency. The two additives exhibit distinct effects in lowering the initial oxidation temperature, enhancing reaction heat, and suppressing agglomeration. When THV and GAP contents are comparable, the modified B exhibits the highest heat release and combustion intensity, outperforming unmodified and singly modified samples. This study offers a foundation for applying fluoropolymers and energetic binders in B-based propellants.
✓ 已验证
产品关联
DOI
高影响因子
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
·
2020
·
IF 3.232
Jian Zhu,Shuang Zhang,Guo-jun Weng,Jian-jun Li,Jun-wu Zhao
Au@AuAg yolk-shell nanorods with tunable and uniform interior gap were synthesized through galvanic replacement reaction, where Au@Ag core-shell nanorods served as sacrificial templates and HAuCl 4 solution served as reductant. The effects of HAuCl 4 , Ag shell thickness and aspect ratio (AR) of Au nanorods on the morphology of Au@AuAg yolk-shell nanorods had been investigated systemically. The results clearly indicated that AuAg alloy shell thickness of Au@AuAg yolk-shell nanorods could be increased from 3.6 to 10.0 nm by varying the amount of HAuCl 4 . Meanwhile, the shape of AuAg alloy shell could be tuned by changing the shape of Ag coating. With the increasing of Ag coating thickness, the interior gap could be finely tuned in the range from 2.6 to 8.1 nm. The uniformity of interior gap could be improved by increasing the AR of Au nanorods. All these tunable geometries can further affect the plasmonic spectral properties of Au@AuAg yolk-shell nanorods. Because of the appearance of interior gap, the longitudinal localized surface plasmon resonance (LSPR) peak of Au@AuAg yolk-shell nanorods was located between that of bare Au nanorods and Au@Ag core-shell nanorods without interior gap. The increase of outer AuAg shell thickness can weaken the coupling between the inner and outer surface of the AuAg shell and lead to the decrease of AR, so the transverse and longitudinal LSPR bands gather together. The decrease of Ag coating thickness can enhance the coupling between inner Au nanorod and outer AuAg shell, which results in the red shift of the longitudinal LSPR band. This paper provides a method for studying the plasmonic coupling between two metal surfaces with a metal layer or a dielectric layer, which is also a new approach for regulating the plasmonic spectral properties of bimetallic nanoparticles . The controllability of Au@AuAg yolk-shell nanorods in both the interior gap and outer alloy shells makes them have potential applications in biomedicine, catalysis, nanoreactors , and energy storage.
研究领域:
纳米材料科学
·
光学
·
化学合成
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Applied Materials & Interfaces
·
2025
·
IF 8.2
Shuyi Liu,Sijia La,Xuzheng Feng,Xiaoxu Sun,Xianggang Chen,Zishuo Wang,Jixiang Tang,Longfei Yan,Shuyuan Fan,Molang Cai
The phase segregation of wide-band gap perovskite solar cells (PSCs) typically originates from defect centers and strain induced by nonstoichiometric compounds. In this study, we have discovered an excess of PbI2 at the buried interface in inverted wide-band gap PSCs. To address this issue, RbI is introduced to interact with the excessive PbI2, thereby in situ forming a layer of inorganic perovskite RbPbI3. The presence of RbPbI3 as prenucleation centers facilitates intimate contact and enhances crystallinity of the wide-band gap perovskite, thereby alleviating lattice strain and reducing nonradiative recombination centers. Consequently, ion migration is suppressed, and phase segregation at the buried interface is inhibited. After the addition of RbI, the power conversion efficiency (PCE) of the wide-band gap semitransparent device is increased from 17.96 to 19.5%, and the bifacial factor is 83.4%. Furthermore, after continuous illumination at an intensity equivalent to AM 1.5 G for 1000 h, the device based on RbI retains approximately 81.71% of its initial PCE.
研究领域:
材料科学
·
能源技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Desalination and Water Treatment
·
2024
·
IF 1
Yiqiao Xie,Ling Yu,Yang Yu
The high-performance hydrophobic membranes are crucial for the practical application of membrane distillation (MD). The fluorination treatment or inorganic particle incorporation has been widely applied for improving the hydrophobicity of membrane surface. However, the economic and facile method for the fabrication of hydrophobic membranes is still urgently needed. In this study, the fluorinated graphene oxide (FGO) nanosheets were synthesized and used as hydrophobic additives for the polyvinylidenefluoride (PVDF) electrospun nanofiber membrane. The membrane hydrophobicity was greatly improved after the addition of FGO nanosheets due to their inherent strong hydrophobicity and the induced formation of finer nanofibers. In comparison to the control membrane (pristine PVDF membrane), the water flux of the proposed composite membrane with superior salt rejection efficiency of 99.9% was increased by 41.5% (22.2 L/m 2 .h) when treating 3.5 wt% NaCl solution at the temperature difference of 40 °C. The excellent stability of the prepared membrane was verified by a 120-h continuous AGMD operation. The findings from this study demonstrates the FGO nanosheets could be considered as promising materials for the fabrication of high-performance AGMD membranes to promote the application of large-scale AGMD in the desalination and water treatment.
研究领域:
材料科学
·
环境工程
·
膜技术
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
·
2023
·
IF 10.9
Yi-bo Zhang,Ji-Sheng Liang,Chengyan Liu,Qi Zhou,Zhe Xu,Hong-bo Chen,Fu-cong Li,Ying Peng,Lei Miao
P-type Mg 3 Sb 2 -based Zintls have attracted considerable interest in the thermoelectric (TE) field due to their environmental friendliness and low cost. However, compared to their n-type counterparts, they show relatively low TE performance, limiting their application in TE devices. In this work, we simultaneously introduce Bi alloying at Sb sites and Ag doping at Mg sites into the Mg 3 Sb 2 to cooperatively optimize the electrical and thermal properties for the first time, acquiring the highest ZT value of ∼0.85 at 723 K and a high average ZT of 0.39 in the temperature range of 323–723 K in sample Mg 2.94 Ag 0.06 Sb 1.9 Bi 0.1 . The first-principle calculations show that the co-doping of Ag and Bi can shift the Fermi level into the valence band and narrow the band gap, resulting in the increased carrier concentration from 3.50 × 10 17 cm −3 in the reference Mg 3 Sb 0.9 Bi 0.1 to ∼7.88 × 10 19 cm −3 in sample Mg 2.94 Ag 0.06 Sb 0.9 Bi 0.1 . As a result, a remarkable power factor of ∼778.9 µW m − 1 K − 2 at 723 K is achieved in sample Mg 2.94 Ag 0.06 Sb 0.9 Bi 0.1 . Meanwhile, a low lattice thermal conductivity of ∼0.48 W m − 1 K − 1 at 723 K is also obtained with the help of phonon scattering at the distorted lattice, point defects, and nano-precipitates in sample Mg 2.94 Ag 0.06 Sb 0.9 Bi 0.1 . The synergistic effect of using the multi-element co-doping/-alloying to optimize electrical properties in Mg 3 Sb 2 holds promise for further improving the TE performance of Zintl phase materials or even others.
研究领域:
材料科学
·
能源科学
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）